Testosterone Factor

[DVD]

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National Geographic gets to the science behind what makes a man manly his Testosterone Factor. It's one of the most important and powerful hormones in a mans body, but how does testosterone really impact his strength, status, success and even commitment?.

Technical Information

National Geographic gets to the science behind what makes a man manly his Testosterone Factor. It's one of the most important and powerful hormones in a mans body, but how does testosterone really impact his strength, status, success and even commitment?.